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Analysis of Long-Term AAVSO Observations of RS Ophiuchi

Published online by Cambridge University Press:  25 May 2016

B.D. Oppenheimer  and
J.A. Mattei
B.D. Oppenheimer
Affiliation:
American Association of Variable Star Observers, 25 Birch Street, Cambridge, Massachusetts 02138, U.S.A.
J.A. Mattei
Affiliation:
American Association of Variable Star Observers, 25 Birch Street, Cambridge, Massachusetts 02138, U.S.A.

Abstract

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We present here a study of the five reported outbursts of the recurrent nova RS Ophiuchi, together with an analysis of its light variation between outbursts. We find that the shapes and decline rates of the outbursts are strikingly similar to each other. We note the possibility of an additional, unreported outburst in 1945, supported by the similarity of its decline to that of other outbursts. Each interval between outbursts shows periodicity within itself, however, there is no periodicity common to all, and the possible periods range between 892 and 2283 days.

Type
7 Cataclysmic Variables
Information
Symposium - International Astronomical Union , Volume 165: Compact Stars in Binaries , 1996 , pp. 457 - 463
Copyright
Copyright © Kluwer 1996 

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